Built-in type child seat

Abstract: A built-in child seat for an automotive vehicle is accommodated within a recess portion of a seat back of a bench type automotive seat. The child seat may be disposed in a retracted or unfolded position and is constructed such that, in an unfolded condition, wing portions are disposed on either side of the child seat cushion for stabilizing an occupant of the seat against laterally applied forces. Further, a T-shape chest support portion is rotatably hinged to a forward portion of the seat cushion to be upwardly oriented for stably supporting a seat occupant's body and legs with simple and convenient structure. Belt adjusting mechanisms are provided for allowing the child seat to be adjusted according to the size of the seat occupant.

Description: The present invention relates to a child-seat for automotive vehicles comprising: a bench type vehicle seat including an elongate seat cushion and elongate seat back, said seat back including a recess portion therein at a predetermined position; a child seat cushion rotatably hinged at a lower side of the said recess to be foldable between a first position wherein said child seat cushion is disposed within said recess and a second position wherein said child seat cushion rests horizontally on said seat cushion at said vehicle passenger seat; said child seat cushion having wing portions formed at left and right sides thereof and oriented perpendicular to the plane of said child seat cushion; and selectively engageable restraining means (see for example US-A-4 900 086). Various types of child seats for automotive vehicles have been proposed for promoting increased safety for young children. Recently, so-called 'built-in' child seats which are permanently installed in a bench seat of an automobile or the like, have been popular for providing highly stable seating for child passengers. One such previously proposed built-in child seat has been disclosed in Japanese Patent Application No. 56-28023 (corresponding to GB-A-2 023 415). This document teaches a child seat built-in to a rear passenger bench seat of an automobile at a centre, arm rest position. The seat unfolds from the seat back of the bench seat. The built-in nature of the seat promotes ease of use and since it may be folded within the seat back of the vehicle when not in use, no storage problem is presented when the child seat is not used. However, such conventional, built-in child seats may be susceptible to swinging motion (laterally applied force) during turning etc. Moreover, from JP-A-63 149 240 another built-in child seat is known, showing a chest pad for safe and comfortable restraining of the child. This child seat, however, does not show any further restraining means like, e.g., a belt arrangement. In addition, such a conventional built-in child seat is arranged such that, in an unfolded condition, the seat cushion of the child seat is positioned suspended above the seat cushion of the vehicle seat. Thus, the seat cushion of the child seat is susceptive to a tendency to swing back and forth in response to lateral G forces generated in vehicle cornering, and the like. From US-A-4 900 087 a previously proposed child seat is known, which shows side wings against lateral G-forces and a restraint system to keep the child in place at braking times. It is, however, not rested on the passenger seat either and does further not show any chest pad or arrangement for stabilising a child's legs and feet. Thus, it is the objective of the present invention to provide a built-in child seat for an automotive vehicle with simple easy-to-use structure which provides stable support when in use, including substantial stability against laterally applied forces, being suitable for accommodating different or growing children. In order to accomplish the aforementioned objective, a built-in child seat for an automotive vehicle of the kind mentioned above according to the present invention is characterised in that said restraining means comprise : a) a first portion in form of a chest pad pivotally mounted at a distal end of said child seat cushion so as to be folded upwardly so as to be vertically positioned against a front side of a seat occupant when said child seat cushion is disposed in said second position; and a second portion which is adjustable in length by an adjustment apparatus disposed behind said rear surface of said recess and is selectively engageable between a rear surface of said recess and an edge of a distal end of said chest pad. Preferred embodiments of the present invention are laid down in the subclaims. The invention will be described herein below in detail by means of a preferred embodiment and accompanying drawings. In the drawings: Fig. 1 is a schematic perspective view of a preferred embodiment of a child seat according to the invention showing an unfolded state of the seat; Fig. 2 is a schematic perspective view of the child seat of Fig. 1 in a retracted state; Fig. 3 shows a perspective view for explaining a process of unfolding the child seat of the invention, from the state shown in Fig. 2, to that of Fig. 1; and Fig. 4 is an enlarged cross-sectional view of a belt portion of the child seat of the invention for illustrating operation of a belt length adjusting means thereof. Figs. 1 to 4 show a preferred embodiment of a built-in automotive child seat (hereinbelow: child seat) according to the invention. The child seat 10 is installed in a vehicular bench seat 1, usually a rear seat of a passenger vehicle, or the like. The bench seat 1 includes a seat cushion 2 and, at a centre of the seat back 3 of the bench seat 1, a recess 4 is provided. The child seat 10 according to the invention is arranged to fold into and be unfolded from the recess 4. The child seat 10 comprises a seat cushion 11 which may be folded pivotally up and down to act as a seat cushion when the child seat is unfolded and a bottom side of the seat cushion 11 acts as a cover for the child seat 10 when in a folded condition. When the child seat 10 is unfolded, such as pictured in Fig. 1, a rear wall of the recess 4 acts as a child seat back 4a. Two wing portions 12, 12 are disposed at seat side of the seat cushion 11 such that, a child seated in the child seat 10 is firmly held at each side thereof between the wings 12, 12. Further, as seen in Fig. 3, when the child seat 1 is unfolded, a child seat therein will rest against the child seat back 4a, which is formed by the rear wall of the recess, thus the adjoining seat back 3 of the bench seat 1 at each side thereof further serve to nestle the child firmly in the seat and thus the child is substantially protected from lateral G forces which may occur during cornering, etc. It will be noted from the drawing that side cushion members 4b, 4b are formed on inner side walls of the recess 4 for enhancing the comfort of the recessed child seat 10. It will be noted that, according to the above description, the single seat cushion 11 may be folded down from the seat back 3 of the bench seat 1 and thus quickly and simply provides a recessed child seat 10 wherein the two wings 12, 12 and the side cushions 4b, 4b collectively act to comfortably retain the sides of the body of a seat occupant. Thus a child seat having high security and protection against lateral G forces may be provided at low cost. It will also be noted that, in the unfolded condition, the seat cushion 11 of the child seat 10 is stably positioned atop the seat cushion 2 of the bench seat. Thus, the seat cushion 11 of the child seat resists a tendency to swing from side to side during cornering of the vehicle, or the like. Further, the child seat 10 according to the invention may also be provided with a substantially T-shaped chest pad 15 which, as may be seen by comparing Figs. 1 - 3, is disposed on a rotatable hinge pin 16 in such a way as to be interlocked with the seat cushion 11 and to be pivotably mounted so as to rotate upwardly to form a chest pad 15. The lower cut-out portions defining the T-shape act in conjunction with the V-shape of the interlocking end of the seat cushion 11 so as to define spaces for snugly retaining the upper legs of a child occupying the child seat 10. The chest pad 15 has insert openings 17, 17 at a top side thereof for receiving belts 20, 20 therethrough. Mounting tongues 18, 18 are provided at point end portions of each of the belts 20, 20 for being received by the insert openings 17, 17. In order to further improve the utility of the invention, the child seat 10 is provided with belt adjusting means, as will be explained hereinbelow with reference to Fig. 4. As may be seen in Figs. 3 and 4, the child seat back 4a is provided with a pair of grooves formed therethrough and having a stepped, elongate configuration for allowing the belts 20, 20 to be set at a desired height depending on the size of the child seat occupant. Further, provided in a space behind the child seat back 4a, a pair of spring retractable roll-type belt mountings 33, 33 are provided, the belts being wound around the belt mountings 33, 33 and held by a locking member 32 which may be manually released by a lever 31 mounted at an upper side of the seat back 3 of the bench seat. According to the present embodiment, the lever is provided at a position substantially above the recess 4. Thus, according to actuation of the lever 31, a the lock member 32 is released and a desired length of the belt 20 may be extracted for establishing a comfortable fit for a child to occupy the seat. Then, when the lever 31 is released, the lock member closes to firmly hold the belt 20 in place at the desired length. According to the above-described structure, a child may be held on a highly stable seat cushion 11 while gently but firmly being held on all sides by the wings 12, 12, the side cushions 4b, 4b, the chest pad 15 and the child seat back 4a.

Claims: A built-in child seat (10) for an automotive vehicle, comprising: a bench-type vehicle seat (1) including an elongate seat cushion (2) and elongate seat back (3), said seat back (3) including a recess portion (4) therein at a predetermined position; a child seat cushion (11) rotatably hinged at a lower side of said recess (4) to be foldable between a first position wherein said child seat cushion (11) is disposed within said recess (4) and a second position wherein said child seat cushion (11) rests horizontally on said seat cushion (2) at said vehicle passenger seat (1); said child seat cushion (11) having wing portions (12) formed at left and right sides thereof and oriented perpendicular to the plane of said child seat cushion (11); and selectively engageable restraining means (15, 20), characterised in that said restraining means (15, 20) comprise: a) a first portion in form of a chest pad (15) pivotally mounted at a distal end of said child seat cushion (11) so as to be folded upwardly so as to be vertically positioned against a front side of a seat occupant when said child seat cushion (11) is disposed in said second position; and b) a second portion (20) which is adjustable in length by an adjustment apparatus (30) disposed behind said rear surface (4a) of said recess (4) and is selectively engageable between a rear surface (4a) of said recess (4) and an edge of a distal end of said chest pad (15). A built-in child seat (10) as set forth in claim 1, wherein said distal end of said child seat cushion (11) is formed with a forked configuration, a pair of left and right extending sections (11a) of said forked configuration active as leg supports for an occupant of said child seat (10) and said pivotally mounted chest pad (15) being pivotally mounted on a shaft (16) disposed proximate a cleft portion of said forked configuration. A built-in child seat (10) as set forth in claim 2, wherein said chest pad (15) is T-shaped such that, in said upward vertical position, legs of a seat occupant are held between said left and right extending sections (11a) of said child seat cushion (11) and an upper horizontal bar portion of said T-shaped chest pad (15). A built-in child seat (10) as set forth in claim 3, wherein surface contours of said child seat cushion (11) and seat chest pad (15) are complementary, such that, in said first position said child seat cushion (11) and seat chest pad (15) may be folded into said recess (4) substantially as a single unit. A built-in child seat (10) as set forth in claim 1, wherein said second portion of the restraining means comprises a pair of belts (20) housed respectively on retractable spring operated reels (33) behind said rear surface (4a) of said recess (4), said belts (20) being retained by respective locking mechanisms (32) which may be selectively engaged and disengaged according to tugging motion on said belts (20) respectively. A built-in child seat (10) as set forth in claim 5, wherein each of said belts (20) includes an engaging member (18) at a distal end thereof, said edge of said distal end of said chest pad (15) including two corresponding engaging members (17) for effecting said selective engagement of said restraining means. A built-in child seat (10) as set forth in claim 1, wherein side wall portions (4b) of said recess (4) include side cushions active to partially surround a child seat occupant. A built-in child seat (10) as set forth in claim 1, wherein said rear surface (4a) of said recess is padded. A built-in child seat (10) as set forth in claim 1, wherein said rear surface (4a) of said recess (4) includes two slits (30) through which said belts (20) are disposed. A built-in child seat (10) as set forth in claim 9, wherein said slits (30) are respectively formed as a substantially narrow single elongate opening having a plurality of parallel step portions spaced vertically from each other, a length of each of said step portions being at least equal to a width of said belt (20). A built-in child seat (10) as set forth in claim 1, wherein said recess (4) is provided in a centre area of said seat back (3) of said bench type vehicle seat (1).

Inventors: PARK GIL SAM, PARK, GIL SAM., Park, Gil Sam.,c/o Ikeda Bussan
Applicants: IKEDA BUSSAN CO, IKEDA BUSSAN CO., LTD.
Application year: 1994
Main classification: B60N2
IPC codes: B60R22, B60N2